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Online Edition: "Specifications for Flavourings"
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Analytical Methods (Volume 4)
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Flavouring
Ethyl propyl trisulfide
Synonym(s)
3,4,5-Trithianonane
Latest JECFA evaluation
2007 (Session 68)
Status of specification
Full
Information required
Chemical name
Ethyl propyl trisulfide
JECFA number
1695
CAS number
31499-70-4
FEMA number
4042
COE number
FLAVIS number
12.256
Molecular weight
168.35
Chemical formula
C5H12S3
Physical form/odour
Clear, pale yellow liquid; Spicy, herb-like aroma
Solubility
Soluble in non-polar solvents; insoluble in water
Solubility in ethanol
Soluble
Boiling point (°C)
234-237°
Assay min %
98% (sum of three components)
Acid value max
Refractive index
1.544-1.559
Specific gravity
1.071-1.083 (20°)
Other requirements
Contains 48-50% ethyl propyl trisulfide, 20-30% diethyl trisulfide and 20-30% dipropyl trisulfide
ID Test
HNMR IR MS
Spectrum